Measurement of the inclusive Z cross section via decays to tau pairs in pp collisions at √ s = 7 TeV
Name
Chatrchyan2011_Article_MeasurementOfTheInclusiveZCros.pdf
Description
Published version
Size
461.6 KB
Format
Adobe PDF
Checksum (MD5)
fc2b8d7e16dad2a5813bdace8efa69f5
Author(s)
The CMS Collaboration
Date Issued
2011
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Chatrchyan, S., et al. "Measurement of the Inclusive Z Cross Section Via Decays to Tau Pairs in Pp Collisions at Root S=7 Tev." Journal of High Energy Physics 8 (2011).
Version
Final published version
Abstract
The FIrst measurement of inclusive Z → T+T- production in pp collisions at the LHC is presented, in the final states μ+hadrons, e+hadrons, e+μ, and μ+ μ. The data sample corresponds to an integrated luminosity of 36 pb-1 collected with the CMS detector. The measured cross section is σ (pp → ZX)×B (Z → T +T-) = 1:00±0:05 (stat:) ± 0:08 (syst:) ± 0:04 (lumi:) nb, which is in good agreement with the next-to-next-to-leading order QCD prediction and improves on previous measurements in the Z → e+e- and μ +μ - channels. The reconstruction eficiency for hadronic T decays is determined with a precision of 7%. © 2011 SISSA.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1007/JHEP08(2011)117
